Floor and paving block



W. H. HOLLENBECKx FLOOR AND PAVING BLOCK.

APPLICATIQN FILED JAN. 7. 1920.

1,348,418., Patented Aug. 3,1920.

F QE

FLOOR AND PAVIN BLOCK. 1

steals.

To all whom it may com-(am Be it known that 1,.VV'LLLIAM H. l-IoLLEN- 1mm, a'citizen of the United States, residing at Portland, in the county of Multnoniah and State of Oregon, have invented a new and useful Floor and Paving Block, of which the following is a specification.

his invention relates to an improved block for flooringand paving purposes such as for paving streets where heavy traffic is exoecte'd, on -bridges where a surface is desired that must remain in place and at the same time combine lightness with durability,.or for heavy machine shop and factory floors, so as to last a considerable period and permit the attachment of machines thereto without the ordinary objections due to concrete floors as well as obviating fdestruction and dirt and dust otherwise caused. I i

it further object of the invention is to provide a floor and paving block of novel form adapted when a series of blocks are laid, to produce spaces between the upper and lower portions of the blocks adapted to receive a filler, in order to connect and bind the blocks together, that theywill be prevented from moving up or down, backward or forward or in any other manner, being securely locked in place.

With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings:

Figure 1 is a perspectiveview showing a series of floor and paving blocks constructed in accordance with the invention and laid end to end and side to side in staggered relation to use;

Fig. 2 is a horizontal sectional view taken on the line 2-2 of Fig. 1 through one of the blocks;

Fig. 3 is a similar view taken on the line 3-3 of Fig. 1, through the lower portion of one of the blocks; and

Fig. 4 is a vertical transverse sectional View taken on the line 4lt of Fig. 1 and showing the assembled and transverse relation of the blocks to each other when laid.

Specification of Letters Patent. =1 t t A 3 1920 Application filed January 7, 1 20. Serial no. 349,957.

Referring to the drawings in detail, in which like reference characters designate corresponding parts throughout the several views, each block is designated by the numeral'lO, the same comprising substantially, rectangular parallelograms in outline and substantially oblong in shape, the lower p or tion 11 being provided at the sides with vertical grooves 12, intermediately of the ends thereof, and the corners being provided with grooves 13, thus providing intermediate projecting portions between the corners 13 at the ends as shown at 14, and between the corner grooves 13 and the intermediate groove 12.

The lower edges of the projecting portions above specified, are flush with the bottom face. 15 of the block, as particularly indicated in F ig- 4 of the drawings and the upper. portion 16 of the block is substantially dove-tailed in cross-section lengthwise andJtransversely, the. sides extending I orsloping inwardly toward the bottom from the top 17, as shown at 18 thus producing upwardly facing shoulders 19 at the top edges of the projecting portions.- By this means, when the blocks are assembled end to end, and preferably in staggered relation, as shown in Fig. l ofthe drawings,

so that the ends of blocks in one rowwill be disposed adjacent to the intermediate portion of the blocks in the next adjacent row, spaces will be providedbetween the blocks at the upper portions thereof intermediately of the top and bottom faces and the grooves 12 and 13, will be brought to gether at each side of the blocks and at the corners thereof, thus providing openings of square or rectangular cross-section; horizontally, so as to receive a filler for binding the blocks in position.

The blocks are preferably made of wood with the grain exposed to the surface, that is the grain runs vertically, for greater wearing qualities. in practice, the blocks have been made four inches wide by ten inches long and six inches high, and allowance is made for a space three eighths of an inch wide between each block on the surface, tapering toa width of one-half an inch on the ends and sides, three inches I from the top of the block, with a groove one quarter of an inch half square on each of the four corners of the blocks, starting at a point three inches from the surface and running to the base of the block, and a groove 011 each of the two sides one half of an inch by one quarter of an inch half way between the two ends of the block, starting also at a point three inches from the surface and running to the base of the block.

WV hen. so laid, these blocks form a solid base with square holes one half inch by one half inch running through them at regular intervals from the base to a point three inches above the base, where they emerge into the filler space between the blocks, said holes or vertical openings formed by the coacting grooves 12 and 13, being disposed intermediately of the lengths of the blocks and at the corners thereof. hen the blocks are laid the filling material designated at 20, preferably grout or other tiller of cementitious material or the like, is poured into the spaces between the blocks and as this filler must'fin'd its level it naturally percolates through the filler space and through to each one of the holes. When the filler has se it will be readily seen that these blocks are lockedin place, it being impossible to move them either up or down, backward or forward, or in any other manner, having by this method practically and completely made a cement wrapper for each and every block.

This block is particularly adaptablefor street paving, where heavy trailic is 'eX- pected, on bridges where a surface is desired that must remainin place, combining lightness with durability. It can be treated with creosote or other substance so as to be made practically water-proof or fire-proof if desired. For heavy machine shops or factory floors this block will outlast the building it self under the most trying test, and as evidenced by some of the largest practical construction, employing these blocks, where more than the ordinary wearis anticipated, wood blocks have been used with more than ordinary success. The blocks however, can be made of wood, brick or concrete form, to meet any condition which may be specified, the same principle applying to each.

WVhere this type of block is used in practice, it will be realized that machinery can beset up and operated without the excessive cost of preparing special beds for the machinery, as the maohines'can be anchored securely to this floor much more readily than to a concrete floor, and with the absolute lack of dust naturally resulting from the wear on any concrete flooring. The cost of producing the block will be lessthan the present type of floorings and in any event, the cost, whatever it may be, is bound to be lesswhen durability and satisfaction are considered as essentials.

Having thus described my invention what I claim is: V

1. A floor andpaving block, comprising a relatively rectangular body having the upper portion thereof dove-tailed in crosssection, taken transversely, the lower portion being provided with vertical grooves at the sides and corners thereof, to provide projecting portions, said projecting portions forming upwardly facing shoulders with the top portion and the bottom edges of said proj ecting portions being flush with the bottom of the body.

2. A floor and paving block, comprising an oblong body having a downwardly tapered upper portion, the lower portion forming upwardly facing shoulders in conjunction therewith and provided with grooves intermediately and at the corners thereof, said blocks when disposed end to end and side to side, forming filler spaces therebetween, the grooves coacting to form openings communicating with said filler spaces therebetween, and the upper portions of the blocks.

' 3. A block of the class described comprising a body having its lower portion formed with vertical grooves, the grooves of adjacent blocks being adapted to cooperate to produce openings and the upper portion of the block being tapered downwardly to said lower portion to provide filler spaces communicating with said openings when the blocks f are disposed together, said filler spaces being increased in width downwardly.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

' lVILLIAM H. HOLLENBEGK.

W'itnesses v R. S. HAMILTON, A. HylvanNnn. 

